(12 and Unders) When their...

Question
(12 and Unders) When their is a runner on third base and she has a lead.  The pitcher has the ball, inside the circle, but she has walked to the edge of the circle towards third base and is standing their, still inside the circle, facing the runner with the ball in her glove just standing their looking at the runner and the runner freezes, not making any attempt to go back to the base or go towards home plate.  Remember the pitcher is inside the circle yet just looking at the runner and the runner is not moving.  IS THE RUNNER OUT? Because the pitcher is not on the rubber and she is facing the runner?  Or is the runner still out because the pitcher has the ball in the circle?

Answer
This is the look-back rule.

The look-back rule refers to the requirement that a runner on base not "dance around" while the pitcher is inside the circle. Basically when the pitch has the ball within the circle the runner can't juke back and forth in order to draw a throw or she can't just stand there off the base, she must go one direction or the other. If the runner continues to change direction the umpire may call her out. Likewise if she stops between bases waiting for the pitcher to throw to a fielder, as sometimes happens between pitches, and the pitcher is in possession of the ball within the circle, the runner may be called out by the umpire.